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Homework Help: Jacobian math homework

  1. Mar 12, 2010 #1
    1. The problem statement, all variables and given/known data

    Suppose that P, Q, and R are regions in R2, and suppose T1 : P -> Q and T2 : Q -> R are
    dierentiable. Use the (multivariable) Chain Rule and det(AB) = det(A)det(B) to show that the Jacobian of the
    composition T2 o T1 is the product of the Jacobians of T1 and T2.

    2. Relevant equations

    3. The attempt at a solution

    So if I say T1 is given by x = g(u,v) and y = h(u,v) and T2 is given by u = i(s,t) and v = j(s,t) , I know how to find the two jacobians T1 and T2 but am confused how do you find the jacobian of the composite transformation T1 o T2?
  2. jcsd
  3. Mar 12, 2010 #2
    Re: Jacobian

    Follow their instructions: use the chain rule to compute the derivative of [tex]T_2 \circ T_1[/tex].
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